Multi-function handheld speaker integrating recording and playback, built-in high power audio system, clear and loud sound quality. It is suitable for outdoor activities, conference speeches and other occasions, making your voice spread further.

This high-power handheld recorder speaker has excellent recording and playback functions, supports 10 seconds of fast recording, which is convenient for you to broadcast voice anytime and anywhere. Equipped with high-quality microphone and powerful speaker, it is suitable for various occasions, allowing you to easily expand the sound coverage.

The paper expounds the influence and change of the loudspeaker and car horn on the form of public speech. To expand the core function of the sound source, the loudspeaker is widely used in national disaster prevention education, outdoor advertising, large gatherings and other occasions. The car horn, with its mobility and powerful amplification function, plays an important role in advertising and the rapid spread of emergencies. These two devices are tools to help disseminate information and enhance the capacity of the public to reach it. The appearance and use of the two have changed the form of public voice, and also provided a new way for public expression, interaction and influence.